The view (during a crowd rendition of YMCA) from the Middle Tier of the West Stand of Twickenham Stadium during the London Rugby Sevens 2013. The Sevens event involve a number of teams taking part in a tournament spread over 2 days (this being day 1) as part of the IRB Sevens World Series. The theme for this year was Safari with a large section of the crowd getting dressed for the occasion.